Essay On Epidermis

Improved Essays
Show More
The functions of the skin are protection, body temp regulation, blood resevior, excretion, metabolic functions, and cutaneous sensations. The skin is composed of two distinct regions: epidermis and dermis. The epidermis is composed of epithelial cells and is the outermost protective shield of the body. The epidermis is a keratinized stratified squamous epithelium consisting of 4 distinct cell types (keratinocytes, melanocytes, Merkel cells, and Langerhans’ cells) and 4-5 distinct layers. The underlying dermis makes up a bulk of the skin. It is a tough, leathery layer composed of fibrous connective tissue. The dermis is the only vascularized region of the skin because of the nerves and blood vessels in the region. Thick skin covers the palms, soles of feet, and the fingertips. …show more content…
In thin skin, which covers the rest of the body, the stratum lucidum appears to be absent and the other strata are thinner. The stratum basale is the deepest epidermal layer that consists of a single row of cells, representing the youngest keratinocytes. This layer is also known as the stratum germinativum because rapid cell division occurs with the cells that make up this layer of the skin. The stratum spinosum consists of several cell layers that contain a weblike system of intermediate pre-keratin filaments. The keratinocytes in this layer appear as irregular spiny shaped cells, causing them to be called prickle cells. Langerhans’ cells are most abundant in this layer. The stratum granulosum is a thin layer composed of layers of keratinocytes that appear flattened. The stratum lucidum appears as a thin translucent band. It has a few rows of clear, flat, dead keratinocytes. This layer is only visible in thick

Related Documents

  • Decent Essays

    Microdermabrasion Essay
    • 1555 Words
    • 7 Pages

    Microdermabrasion Essay

    Christina McNellis Contemporary electrotherapy HND Beauty Therapy Unit DP3F 35 Microdermabrasion Type of treatment In microdermabrasion, tiny crystals are sprayed onto the skin to gently remove the outer layer of your skin. This technique is less aggressive than dermabrasion, so you don't need numbing medicine. It is an exfoliation and skin rejuvenation procedure that leaves skin looking softer and brighter…

    • 1555 Words
    • 7 Pages
    Decent Essays
    Read More
  • Improved Essays

    Effects Of Tattoos On The Integumentary System
    • 620 Words
    • 3 Pages

    Effects Of Tattoos On The Integumentary System

    Show you’re Tats Our skin is made up of three main parts. The dermis, epidermis, the subcutaneous layer. The skin forms a protective covering over the entire body. An example of this is the water proofing concept.…

    • 620 Words
    • 3 Pages
    Improved Essays
    Read More
  • Decent Essays

    Ap Biology Unit 13 Study Guide
    • 228 Words
    • 1 Pages

    Ap Biology Unit 13 Study Guide

    Skin – *The skin of pigeon like any other vertebrate composed of two layers – outer epidermis and inner dermis. *Epidermis is ectodermal in origin while dermis is mesodermal in origin. *Epidermis is in turn made up of two layers viz. , stratum corneum and stratum germinativum or profoundum. *Stratum corneum is multilayered, outer part of epidermis which is keratinized without any uni or multi cellular gland cell.…

    • 228 Words
    • 1 Pages
    Decent Essays
    Read More
  • Superior Essays

    Essay On Stratum Corneum
    • 1656 Words
    • 7 Pages

    Essay On Stratum Corneum

    In your own words, explain why the stratum corneum is so important when discussing dermal absorption? The Stratum Corneum is the outermost layer of the epidermis and it is made up of stratified squamous epithelium with no blood vessels. As the cells of the epidermis divides and age, the older epidermal cells are pushed away from the dermis to the epidermis towards its outer surface (stratum corneum). It would be right to describe the stratified squamous cells of the stratum corneum as many layers of thin, flat, tightly packed dead/keratinized cells which will eventually shed off.…

    • 1656 Words
    • 7 Pages
    Superior Essays
    Read More
  • Decent Essays

    Dermology Physican Assistant Essay
    • 198 Words
    • 1 Pages

    Dermology Physican Assistant Essay

    I plan on taking Anatomy, Physiology, Biochemistry, Microbiology and more. I want to become a Dermology Physican Assistant. Im willing to take extra school if needed because this is something that I want to do later in life. I don't think it matters the expense if you are passionate and know this is something you can see doing. I really liked anatomy in high school its interesting knowing how your body responds when certain things happen to you.…

    • 198 Words
    • 1 Pages
    Decent Essays
    Read More
  • Improved Essays

    Epidermis Layers
    • 527 Words
    • 3 Pages

    Epidermis Layers

    1. The three major layers that make up healthy skin are the epidermis, dermis, and the hypodermis. The epidermis is a keratinized stratified squamous epithelium that resists abrasion and reduces water loss. It have four cell types and five layers.…

    • 527 Words
    • 3 Pages
    Improved Essays
    Read More
  • Improved Essays

    The Three Major Layers That Make Up The Skin
    • 635 Words
    • 3 Pages

    The Three Major Layers That Make Up The Skin

    1. The three major layers that make up the skin are the epidermis (made of epithelial tissue; provides a waterproof coating for the skin), the dermis (made of dense connective tissue; contains collagen and elastin fibers, blood vessels, nerve endings sweat glands, sebaceous glands, hair follicles, and more), and the hypodermis (made of areolar connective tissue and adipose tissue; this layer of subcutaneous fat provides padding and insulation for the body). 2. There are two main categories of burns: partial-thickness burns and full-thickness burns. First and second degree burns are partial-thickness, meaning only the epidermis (and in second degree burns, the dermis) is damaged. After these burns the skin will be red and swollen or blistered, but will eventually heal because new skin will grow to cover the wound.…

    • 635 Words
    • 3 Pages
    Improved Essays
    Read More
  • Great Essays

    Acne Vulgaris Essay
    • 1213 Words
    • 5 Pages

    Acne Vulgaris Essay

    1.1 Background Our skin comprised of two main parts – epidermis and dermis. Epidermis is the superficial and thinner portion which serves to protect the skin and underlying tissues from abrasions, heat, microbes and chemicals. The deeper and thicker connective tissue portion called as dermis hosts several accessory structures of the skin like hair follicles, oil (sebaceous) glands and sweat (sudoriferous) glands. Sebaceous glands secrete greasy substances called sebum that will moistens the hair, waterproofs the skin as well as inhibit growth of some bacteria.…

    • 1213 Words
    • 5 Pages
    Great Essays
    Read More
  • Improved Essays

    Minor Wounds Research Paper
    • 681 Words
    • 3 Pages

    Minor Wounds Research Paper

    The dermis is the inner and thicker layer of the skin and is a fibrous connective tissue that provides strength to the skin (lecture supplement, ch.6). When injury or damage occurs to the skin, it goes through 4 different phases to repair itself. The first being homeostasis because of the body and its structures natural response to keep things the same at all times. The second stage would be inflammation, where the damaged and dead cells are cleared out of the wound. The third stage is proliferation where new tissue is grown to replace the damaged tissue and its structures.…

    • 681 Words
    • 3 Pages
    Improved Essays
    Read More
  • Improved Essays

    Fordyce Spots Research Paper
    • 1154 Words
    • 5 Pages

    Fordyce Spots Research Paper

    Did you know that the average adult has almost 10 pounds of skin? Furthermore, more than half of the dust in the world is just dead skin. Cells, nerves, receptors, tissue - skin doesn’t just protect our delicate insides. It plays the biggest role in how we appear, and how we feel about our appearance.…

    • 1154 Words
    • 5 Pages
    Improved Essays
    Read More
  • Superior Essays

    Burt's Bees Argumentative Essay
    • 927 Words
    • 4 Pages

    Burt's Bees Argumentative Essay

    Many could desire the glowing, radiant skin advertised on T.V. However, there is a deeper purpose than looking model ready. Below the pigmentation we see are tons of layers that protect and help us function. Nina Jabalonski, a professor, and author, discusses how it protects us. From elements such as UV rays and water, regulates our temperature, acts as a barrier or immunity against illnesses and abrasions, and senses our environments allowing us to connect.…

    • 927 Words
    • 4 Pages
    Superior Essays
    Read More
  • Great Essays

    Essay On The Integumentary System
    • 1121 Words
    • 5 Pages

    Essay On The Integumentary System

    The integumentary system is comprised of the skin’s two layers, the dermis and epidermis, as well as hair, nails, glands, and nerves. Underlying the skin is the subcutaneous layer, or hypodermis, this layer is not a part of the integumentary system but is vital to its function. Made up of a layer of loose connective tissue the hypodermis serves to connect the skin to underlying muscle and bone (142). The hypodermis also assists the overlying skin by supplying it with blood vessels and nerves (Vanputte, Regan, & Russo 149). Superficial to the hypodermis is the deepest skin layer, the dermis.…

    • 1121 Words
    • 5 Pages
    Great Essays
    Read More
  • Decent Essays

    Ultraviolet Radiation
    • 346 Words
    • 2 Pages

    Ultraviolet Radiation

    Given that skin is broken down into three layers, the layer of the skin that would be directly exposed to the ultraviolet radiation from the sun is the epidermis. Her skin has melanin in it which protects it from the ultraviolet radiation. Pigment would surround the nucleus of the skin cells and escutcheon to protect the nuclear DNA from the ultraviolet rays from the sun. 2. Next, create your own scenario.…

    • 346 Words
    • 2 Pages
    Decent Essays
    Read More
  • Improved Essays

    The Skin: The Physiology Of Skin
    • 1280 Words
    • 6 Pages

    The Skin: The Physiology Of Skin

    Its thickness varies on the location in our anatomy. The integument consists of two layers known as the epidermis and the dermis, which rests on a fatty subcutaneous layer (hypodermis). The epidermis is the outer layer of the skin. The dermis is the second layer of the skin, beneath the epidermis. Skin cancer is an abnormal growth of skin cells and is most often developed on skins that are exposed to the sun.…

    • 1280 Words
    • 6 Pages
    Improved Essays
    Read More
  • Improved Essays

    Four Main Tissue Types
    • 902 Words
    • 4 Pages

    Four Main Tissue Types

    Task 1 Unit 11 Diagram Task 2 Unit 11 Four main tissue types Epithelial tissues One of the main tissue type are the one that characterize the epithelium .The epithelial tissues are used as cover for the all of our body surface both internal and external .Our epithelium it is formed by cells tissues that are one cell thick which make up the simple epithelium and from cells which are two or more cell thick which make up the stratified epithelium. The Simple Epithelium is made of Example 1)…

    • 902 Words
    • 4 Pages
    Improved Essays
    Read More

Related Topics

Ready To Get Started?
Discover
Company
Follow
©2024 Cram.com
Privacy Policy |  Cookie Policy |  About Ads |  Site Map |  Advertise  | 
  • Cookie Settings